Whoa, I knew CreditNew is unbeatable in making low credits here sometimes, but that the opposite happens I've not seen much before.
Session 2595 is really driving DAs credit system more mad than it already is.
Another one for fixing with PayDay...
____________Life is Science, and Science rules. To the universe and beyond
Proud member of BOINC@HeidelbergMy BOINC-Stats

[Edit]:
Just checked: PayDay estimates that it will grant this workunit around 2044 cobblestones with a current uncertainty of around 2% (since the session has not completed yet the statistical dataset is not complete either). The preceding and following workunits are estimated at 2044.3 and 2088 respectively.
Compared to that, CreditNew is off by... well, a lot. It puts this workunit at 894591.3 cobblestones, the preceding workunit was given 1108.4 and the following one 376.1.

Since the rendered images are pretty much identical for the 3 workunits I tend to trust PayDay more than CreditNew on this.